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Area of Science:

  • Biology education research
  • Active learning strategies
  • Undergraduate STEM education

Background:

  • Traditional lecture methods are often less effective than active learning.
  • Peer-Led Team Learning (PLTL) is an active learning approach.
  • Previous studies suggest active learning enhances student outcomes.

Purpose of the Study:

  • To evaluate the effectiveness of Peer-Led Team Learning (PLTL) in an introductory biology course.
  • To determine if PLTL impacts student achievement and failure rates.
  • To assess the effect of PLTL on the achievement gap for underrepresented minority (URM) students.

Main Methods:

  • Implementation of PLTL in an introductory biology course.
  • Comparison of student achievement and failure rates between PLTL participants and non-participants.
  • Analysis of achievement gaps between URM and non-URM students in PLTL and non-PLTL groups.

Main Results:

  • Students participating in PLTL demonstrated significantly higher achievement.
  • PLTL led to a substantial reduction in failure rates, particularly for URM students.
  • The achievement gap between URM and non-URM students was narrowed by PLTL.

Conclusions:

  • PLTL is a superior instructional method compared to traditional lectures for introductory biology.
  • PLTL effectively improves academic performance and reduces disparities for URM students.
  • Widespread adoption of PLTL in undergraduate STEM courses is recommended.